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Title: Fundamental Principles Of Measurement By Displacement
Author: Allen D. Maclean
Source: 1939 Appalachian Gas Measurement Short Course
Year Published: 1939
Abstract: In our subject line the words Measurement by Displacement were very carefully chosen. This is a principle of measurement very widely used in gas ptactice, yet it can be confused with many other factors which are common to the gas industry. The sale of gas often times involves pressure of the gas being measured, the heating value expressed in Btu, chemical analysis of the gas, speciflc gravity, temperature, and other factors of lnterest to the gas man yet the meter, upon which he depends to express the value of the commodity he sells, can know only one thing, and that ls displacement or because the displacement ls caused by a movement, we sometimes use the term swept volume.

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